Maize seed demand, supply and varietal age dynamics in Ethiopia (Record no. 69819)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02573nam a22003017a 4500 |
| 001 - CONTROL NUMBER | |
| control field | 69819 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260123151626.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 260121s2025 ||||op||||00||0|eengdd |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Kebede, J. |
| 9 (RLIN) | 41127 |
| 245 10 - TITLE STATEMENT | |
| Title | Maize seed demand, supply and varietal age dynamics in Ethiopia |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | [Mexico : |
| Name of publisher, distributor, etc. | CIMMYT, |
| Date of publication, distribution, etc. | 2025] |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 38 pages |
| 500 ## - GENERAL NOTE | |
| General note | Open Access |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Despite a continuous maize varietal development in Ethiopia, farmers are using relatively old varieties. Against this backdrop, using the quantity of maize seed supply and distribution for the period of 2009-2023, this study analyses dynamics in maize varietal age in the country. Result shows that while average varietal age (AVA) of maize seed demanded, supplied, and distributed in the country gradually decreased overtime for both public and privately sourced hybrids, it was increasing for improved open-pollinated varieties (OPVs). We find that varietal age below threshold increases demand, supply and distribution of maize seed varieties, but varietal age above threshold reduces demand, supply and distribution of the varieties. We observe similar results for the effects of seed specific varietal age on demand, supply and distribution of the varieties. We further demonstrate that while there is a bidirectional causality between maize seed supply and distribution, the relationships between maize seed demand and supply, and demand and distribution are unidirectional: previous year supply and distribution cause demand for specific variety, but supply and distribution are not responding to previous demand. This implies that farmers’ varietal knowledge is limited to the varieties supplied to them in the previous season, and supply is driving demand. The results further imply that maize seed production and marketing focused on more recently released varieties in general and that of OPV in particular can be used as an instrument to reduce AVA thereby increasing varietal turnover. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in English |
| 597 ## - CGIAR Initiative | |
| Donor or Funder | CGIAR Trust Fund |
| Program & Accelerators | Breeding for Tomorrow |
| CGSpace handle | https://hdl.handle.net/10568/180569 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Varieties |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1303 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Maize |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1173 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Seed |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 9893 |
| 651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME | |
| Geographic name | Ethiopia |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 2025 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abdu Mohammed |
| 9 (RLIN) | 40422 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Debello, M.J. |
| Miscellaneous information | Sustainable Agrifood Systems |
| Field link and sequence number | INT3210 |
| 9 (RLIN) | 903 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS | |
| Link text | Open Access through DSpace |
| Uniform Resource Identifier | https://hdl.handle.net/10883/36810 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Report |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Date last seen | Total Checkouts | Price effective from | Koha item type | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01/21/2026 | 01/21/2026 | Report | Not Lost | Dewey Decimal Classification | CIMMYT Publications Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 01/21/2026 |